In what cases can you make repairs? gas boiler on one's own? Often during the operation of this equipment, problems arise - non-observance temperature regime water heating, pump or fan breakdown. Some of these defects can be eliminated by hand, but first you need to know what to do. on their own forbidden.

What can be repaired by yourself

Modern gas boilers Are reliable devices that ensure effective heating of the coolant. Their design can be divided into 3 main parts - a burner, safety blocks and a heat exchange unit with additional elements(circulation pump, expansion tank, fan). If a breakdown occurs in the first two, a specialist call is required.

Self-repair of gas boilers is possible only in that part of the equipment in which the gas supply is not involved. Any intervention or change in design (equipment) can lead to a serious emergency. It is possible to identify the main types of restoration work that are feasible at home without the involvement of specialists.

• Washing the heat exchanger. It is carried out using special pumps or by hand... For the latter it is necessary to dismantle the block.
• Traction problems. Chimney clogging is often the cause.
• Failure of the fan, expansion tank, pump.

First of all, you should familiarize yourself with the boiler operating instructions. In addition to recommendations for carrying out preventive work, it provides detailed description constructions. If this document is missing, you can take the necessary documentation on the manufacturer's website.

Cleaning the heat exchanger

A large scale layer on the inner walls of the heat exchanger can cause uneven heating of the water. This is due to a significant decrease in the thermal conductivity index. As soon as the water heats up to the required temperature, the boiler automation switches off (reduces) the burner power. But due to the high inertia, the next "batch" of the coolant will heat up much more slowly. As a result, there is an alternation of streams with different temperature indicators. This phenomenon brings the greatest discomfort during the use of hot water.

The heat exchanger must be cleaned to remove scale. It is best to dismantle the structure - this way you can make sure of its integrity and at the same time. The order of work is as follows:

• Disconnect the power supply and shut off the gas supply.
• Close the taps for water inlet and its distribution in the heating and hot water system.
• Remove the front cover of the boiler.
• Discharge of residual water. For DHW - open the tap with hot water; for heating - a special valve inside the structure.
• Dismantling the heat exchanger. It is important to remember the order of its attachment.

For flushing, you can use special formulations or make a solution yourself. The main ingredients are vinegar and citric acid. Having previously cleaned the surface from rust, the heat exchanger is placed in a container with a cleaning compound. The exposure time depends on the level of clogging. Usually 1.5-2 hours are enough for complete cleaning.

Lack of traction

Periodic burner shutdown can be caused by poor chimney draft. The sensor signals a large number of CO² and the boiler switches off automatically. For cleaning, you first need to check the condition of the chimney.

Most often, problems arise in winter period... They can be associated with the formation of ice on the outer part of the structure. As a result, the effective diameter of the chimney is reduced, which directly affects the draft parameters. To minimize this factor, it is recommended to make external insulation or install a chimney with a layer of basalt wool.

Large amounts of soot are rare in gas boilers. However, with a long service life, it can occur. To eliminate, follow these steps.

1. Disconnect the pipe from the boiler and completely dismantle it.
2. Use a special brush to clean inner surface chimney.
3. Using a household vacuum cleaner, blow out the structure.

If the gas boiler is connected to a stationary pipe (made of bricks), you need to use special tools to remove soot. They are brushes attached to a steel rope. After cleaning, most of the soot will enter the boiler. Therefore, it should be rinsed thoroughly.

Hardware problems

If individual modules (expansion tank, pump or fan) are out of order, it is recommended to invite specialists to replace them. Qualified repair of gas boilers is possible only with a set of tools and a certain practice in performing these works.

The main problem lies in the diagnosis of the breakdown. For this, specialists use devices that determine the faulty node. Based on the information received, a plan for further repairs is drawn up.

To avoid emergency situations with a gas boiler, it is recommended to adhere to the rules for operating the equipment. This will significantly increase the maintenance-free service life of the device.

2017-04-15 Evgeny Fomenko

Features of boilers Immergaz

The main distinctive feature gas boilers Immergas Eolo Star and Immergas Nike Star, are as follows:

Grundfos pump

Equipped with bypass with automatic system regulation set in pumping system... Serves as protection against boiling of the heat exchanger, and also makes it possible to synchronize the operation of the pump and the hydraulic resistance of the heating system.

The fitting, which is located at the connection between the boiler and the chimney, allows measure the vacuum generated in the fan... This fitting makes it possible to detect a breakdown and fix it in a short period of time.

To measure the temperature of the flow reed switch installed, its advantage is simplicity and a high degree of reliability.

Provided adjustment mode for low consumption in the hot water circuit, that is, at a low flow rate or when the inlet water is very low temperature. At the exit, you will have a stable temperature without surges.

Most common error codes and troubleshooting methods

Let's try to figure out what the error codes of the Immergaz gas boiler mean. The most common error 01, it is blocking the ignition. Let's consider each error in more detail.

01

Ignition lock. The boiler is designed so that it turns on automatically. If, after ten seconds, the burner has not ignited, a lockout is performed. To remove it, click on reset.

If the boiler turns on after a long period of inactivity, it will be necessary to remove the blockage, as air has accumulated in the gas line. If the unit turns on quite often, seek qualified assistance from a specialist.

02

Error 02 - the safety thermostat is triggered, overheating has occurred, the flame control is faulty. If the temperature starts to rise during normal operation of the device, a protective function is triggered. Wait until the temperature drops to the desired level, then press the restart key. If this problem occurs frequently, contact a specialist for help.

03

Error 03 is shown on the display when the smoke thermostat is triggered. That is, the fan is faulty, remove the case to solve the problem. Then open the chamber, the engine is located in it, which draws air from the combustion chamber. Open it by unscrewing the screws, clean its blades from accumulated dirt, this can be done with a brush. Grease the bearings and reinstall everything.

04

Error 04 - high resistance of electromechanical contacts. The contact is blocked, the reason may be the failure of the safety thermostat or the sensor of the minimum allowable water pressure. Turn off the device, and after a couple of minutes try to restart, or try to close the contact of the limit thermostat.

Water pressure gauge

If it does not work, close the minimum pressure contacts. Test the contact at the flue gas exhaust pressure switch in the same way, after turning on the fan. If you find where the breakage is, replace the element. If this does not work, you need a repair performed by a qualified technician and diagnostics of the board.

06

Error 06 - there was a breakdown of the NTC sensor in the hot water system. For identification and repair, you must contact service center.

10

Error 10 - low pressure in the system. Error e10 occurs when the pressure in the system drops when it is less than 0.9 bar. The first step is to try to restart, if the error persists, you need to check the following.

The reason may be a leak in the heat exchanger, check it, if you find a leak, fix it. To eliminate, use the make-up lever, it looks like a screw, turn it counterclockwise, by this action the water from the water supply will flow to the heating, watch the pressure values, when the figure is 1.3, close the valve.

11

Error 11. Tripping of the smoke pressure thermostat. When the chimney does not work well, the boiler locks up, after half an hour it starts up again if the draft is sufficient. If more than three trips occur in a row, the display lights up red with an error code.

Smoke pressure switch

Press restart to unblock the boiler. In the instructions, the manufacturer recommends contacting the service center, however, first you can check the draft of the chimney and clean it.

27

Error 27. This error indicates insufficient circulation in the heating system. The boiler begins to overheat, the reasons for overheating may be the following: airing in the heating pipes, the taps are closed. It is also possible that a blockage has occurred circulation pump, unlock it. The reason may be clogged filters, check and clean. Check the heat exchanger for deposits.

Removing air from the heating system

28

Error 28 indicates a leak in the water supply circuit, that is, the device heats up the heating circuit, and the temperature in the water supply also increases, at a time when it should be unchanged. Check all faucets in the house for leaks, also check if the taps are closed.

Other malfunctions

The most common malfunctions of these devices include the following:

Many malfunctions of a gas boiler can be eliminated with your own hands, without resorting to expensive services of the gas service or no less expensive private maintenance and commissioning specialists. gas equipment... The only rule that we will immediately make a reservation about is that you need to understand what you are doing and for what purpose.

Seasonal service

Seasonal maintenance of a gas boiler consists in cleaning it from contamination and checking its functionality. To access the boiler elements, it is necessary to dismantle the casing or casing. To do this, we decide on the method of its fastening, at different models boilers this can be done in different ways. Most often these are several self-tapping screws and several latches in the upper part of the casing.

By gaining access to internal parts boiler, we do not remove anything else when performing seasonal maintenance. Using a soft metal brush, a toothbrush and fine-grained sandpaper, we proceed to remove carbon deposits from all parts of the boiler:

• heat exchanger;
• burners;
• igniter, if available.

We use the aforementioned tool wherever it is convenient, without especially leaning on the brush for metal. Next, blow out the collected dust with a compressor. You can use a rubber tube or a medical dropper tube by simply blowing into it and guiding the other end into the boiler.

Important! Any work on the boiler is carried out with the gas valve closed.

Using a thin awl or a strong needle, you need to clean all the holes on the burner and igniter, and then, after cleaning them again, for example, with a toothbrush, blow again. If there are surface-mounted sensors, the places where they touch the boiler parts must be slightly cleaned sandpaper, and then wipe with a soft woolen cloth.

The ignition and flame control electrodes are well cleaned only with a woolen cloth, without the use of cleaning agents. If there are immersion temperature sensors, it is necessary to remove them from the sleeves, select the liquid present there from the sleeve, thoroughly clean the sleeve inside using a small metal brush or a loose piece steel cable, suitable size... After rough cleaning the sleeve is cleaned with a rag wound on a screwdriver, then the sleeve is filled two-thirds with machine oil and the sensor is installed.

After completing these works, the boiler is thoroughly vacuumed. In accessible places, dust and dirt are cleaned with a damp cloth. We put the trim in place. We check the presence of draft in the chimney by attaching a sheet the size of a notebook to the chimney opening, or by throwing a stream of smoke into the ignition ignition hole, the gas valve at the lowering to the boiler must be closed.

We check the seals and possible gas leaks using the soaping method. In the presence of normal draft, a test run of the boiler is carried out, which must be filled with a coolant. In parallel with the work on cleaning the boiler, it is visually inspected for mechanical damage and coolant leaks. At this point, the seasonal service can be considered complete.

Cleaning the heat exchanger

It is produced with a solution of hydrochloric acid, purchased in the trade network and designed specifically for this purpose. Cleaning is carried out for the main heat exchangers of wall mounted gas boilers and heat exchangers for cooking hot water... The channel cross-section of such heat exchangers is small, which is why they are susceptible to contamination with salt deposits.

Cleaning of the water jacket of floor-standing gas boilers, as a rule, is not performed. The heat exchanger must be removed for cleaning. To do this, remove the boiler casing, unscrew the supply pipes to the heat exchanger, after draining the water from the boiler.

We take out the heat exchanger from the boiler. Wear rubber gloves and use a plastic container to collect the used acid. The method is not complicated. Carefully pour the acid solution inside the heat exchanger until it is completely filled. In the event that the heat exchanger is clogged with scale, active foam will be released. Leave the heat exchanger for 10-15 minutes.

We drain the spent acid into a container and re-fill the heat exchanger with a new portion. We are waiting for the same ten minutes. We drain the solution and rinse the heat exchanger running water... We put on a piece of hose on the nearest water tap and spill the heat exchanger with water. Let's fill the heat exchanger with the acid solution again. If there is no active foam generation, and when the heat exchanger is spilled with water, no significant resistance to the flow is visible, then the heat exchanger is flushed, and you can reinstall it in the reverse order.

Cleaning the burner from carbon deposits

The method of cleaning the burner from carbon deposits has already been described above. However, with strong soot, it is not always possible to cope with only mechanical cleaning. For such cases, special chemical agents... It makes no sense to recommend anything, all tools are quite effective. The cleaning method is reduced to applying the product in the form of a solution to the surface to be cleaned, holding it for a certain time and then removing the exfoliated carbon deposits, more often mechanically... In more detail, you must familiarize yourself with the cleaning method by this or that tool when purchasing it.

In especially difficult cases, for example, when a heat carrier gets on the burner, it must be completely removed from the boiler, immersed in a cleaning solution for several hours. Then remove the burner, ignite in the flame of a portable gas burner. After another application of the solution, using a metal brush or a brush, remove the remaining carbon deposits.

Checking the flue gas duct

The flue gas duct is checked using a mirror. We introduce the mirror into the channel at a slight angle. In the mirror, we should see a light at the end of the chimney. When performing this operation, it is convenient to use the so-called selfie stick, with a mirror attached to it.

Elimination of water leaks at the joints of pipelines

To eliminate the leak, it is necessary to unpack the connection, clean the threads from the old tow and paint. Then, using FUM tape, thread sealing or thread lock, seal the connection again. Check the quality of work by filling the pipeline and the boiler with water.

Checking and eliminating gas leaks

All accessible places of gas leaks must be washed with a solution of soap or special means to check for gas leaks. Soaping solution is prepared from laundry soap by shaving it into a container with warm water and stir until a thick foam is obtained. If gas leaks, a soap bubble will blow out on the foam. The leak can be repaired in the same way as the water leak through the threaded connections.

Burner replacement

Replacing a gas boiler burner will require more attention and care. The purchase of a new burner should be exactly the same model as the one installed on your boiler. Never install a burner not designed for your boiler model.

The beginning is the same - we remove the boiler casing. Having gained access to the burner, we carefully inspect the tubes and sensors connected to the burner. Their location should be remembered so that when assembling a new burner you do not confuse which one to connect to.

How to remove gas burner... 1. Fixing the burner to the combustion chamber housing. 2. Wires for electrode igniter and flame sensor. 3. A branch pipe for supplying a gas-air mixture

Due to the wide variety of boiler models, it is impossible to give specific recommendations, but in any case, there will be:

• a tube for supplying gas to the burner;
• gas pressure sensor to the burner;
• gas valve.

It is possible that there is a control tube from the draft sensor or electrical connection (wires) from the same draft sensor or temperature sensor. When using a burner of the same model as yours, remembering and connecting all the wires and tubes will not be difficult.

Replacing a horn burner installed in a wood-burning stove is even easier to cope with. We unscrew the screws of its fastening to the plate and two tubes: gas supply and gas supply to the igniter. We take out the old burner, insert a new one, screw on the tubes, tighten the burner mounting bolts.

It is not worth repairing the primitive automation of such a burner, the result may lead to unsafe operation of the boiler. The most difficult thing is to replace the burner of a wall-mounted gas boiler, stuffed with electronics and big amount sensors. But do not panic here, the principle is the same: it is good to remember the location of all connections to the burner.

Trying to increase their importance, gas specialists say that such a burner should be "tied" to the boiler by flashing the electronic unit or by adjusting the boiler. The burner is just iron, which cannot be adjusted in any way. The settings may require combustion as such, but this is no longer relevant to the replacement of the burner itself. If the burner is made for the model of the boiler on which it is installed, then the combustion will be correct, however, provided that no attempt was made to regulate it on the old burner.

Replacing the temperature sensor

The need to replace the temperature sensor arises when, when setting a specific temperature mode of operation, the boiler either does not comply with it, or, even worse, goes into boiling mode, which can lead to rupture of the water jacket of the boiler or its heat exchanger.

Temperature sensors, according to the method of installation in the boiler, can be overhead and submersible. Clamp-on sensors are installed on the boiler pipes with clips that press the sensor against this pipe. Replacing them is very simple. Disconnect the old one - put the new one. We put the chip (electrical contact) in place of the old one.

Immersion sensors can be of two types: direct immersion and located in a well filled with oil. When replacing the first, it is necessary to drain the water from the boiler, unscrew the sensor. Pay attention to how the threads were sealed at the sensor mount. This can be simply a tapered thread, using a thread lock (adhesive), gaskets, or O-rings. Sealing with flax and other materials is not used. Install a new sensor using the same sealing method.

When replacing the sensors installed in the sleeves, there is no need to drain the water from the boiler. After loosening the fixing nut, pull out the sensor, check for the presence of oil in the sleeve, install a new sensor, fixing it with the nut. Most simple option Such a sensor is an alcohol thermometer installed in the sleeve for visual monitoring of the temperature in the boiler.

According to safety rules, the repair of all equipment dangerous in operation, which includes gas heating units, must be carried out by specially trained qualified specialists. However, in remote areas, the arrival of a specialized repair team can be expected for a very long time. Therefore, in case of emergency, if the matter does not concern automation and gas pipe, you can do it yourself and repair the gas boiler yourself.

Brief information about the design of the heating system

Modern gas heating systems are complex systems. Control of their work is carried out using a whole complex automatic devices, which you need to familiarize yourself with before starting an independent repair of gas boilers.

The main elements of the security group:

• Draft sensors designed for 75 0 C. This device makes it possible to monitor the state of the chimney. If the normal flue gas discharge fails, the temperature rises and the sensor is triggered. Optimally, in addition to the traction sensor, a gas alarm is acquired.
• The monostat protects turbocharged gas units from impaired removal of combustion products due to a clogged chimney or heat exchanger.
• The limit thermostat is designed to control the temperature of the heating medium in the heating system. When the water boils, the overheating sensor turns off the device.
• When the flame is detected, the flame control electrode switches off the operation of the heating unit.
• A blast valve is used to control pressure. With an increase in pressure above the critical value, a portioned discharge of excess coolant occurs.

Attention! The wear of the stuffing box leads to a constant flow of the coolant from the valve. The remedy is to replace the valve.

Ways to solve some problems when self-repairing a gas unit

Various nodes can fail. heating installation and for various reasons. It can be - low-quality parts, violation of the requirements for operation, sharp blows to the component parts of the unit.

• Most common reason failure of volatile devices is a failure of settings. Do-it-yourself gas boiler repair should begin by checking that the settings are correctly installed and the presence of open contacts. When troubleshooting, the unit is set to the "Winter" mode and the setting is set to the maximum heating temperature.
• If the pump does not work, then either you just need to replace the cable, or you will have to change the pump itself.
• If the burner is not supplied with gas, then it is necessary to make sure that the gas valve is open, the gas line is not clogged, the voltage supply is in order. If the problem persists, after all these steps, you will most likely have to change the electronic board.

Shutdown of parapet boilers in very coldy may be caused by icing on the chimney. The formation of an ice crust is explained by the content of water vapor in the exhaust combustion products. As a result of freezing ice build-up and difficulty getting out flue gas the device turns off automatically and attempts to turn it back on will be unsuccessful.

Advice! In this case, the automation of boiler equipment does not fail, but to resume work heating equipment it is enough to remove ice from the smoke grate. In order to avoid such stoppages of the units, it is necessary to periodically inspect the chimney in severe frosts.

Do-it-yourself gas boiler repair is not always possible and only in cases of visible and simple malfunctions. Complex breakdowns can be corrected efficiently and reliably only by specialists with the necessary knowledge and equipment.

Thermostat(TC) - a device that turns on and off the boiler in automatic mode. This happens depending on the room temperature and equipment settings.

Modern boiler houses are managed by appropriate electronic boards, which are a kind of "brain" of the device, they have a two-pin connector for connecting a thermostat.

By default, the slot contains jumper, therefore, the boiler room without connecting the vehicle will work constantly, which significantly reduces the efficiency of the system.

Possible malfunctions of wall-mounted gas boilers

Boiler equipment breaks down as a result of breakdowns of the main components and elements.

Faults are divided into groups:

• damage mechanical parts;
• problems with electric nodes;
• breakdown of electronic components;
• violation tightness connections of pipelines and hoses;
• glitch settings boiler room.

Important! People who are not specialists in the repair of such equipment can only deal with basic repair and maintenance of boilers, in other cases, the master is called.

In accordance with the rules, if you smell gas, you should screw inlet valve and call gas service specialists. The point is that the broach threaded connections should be done by special wrenches from bronze alloys, which exclude sparking.

Gas leaks are identified during application soap foam on pipe connections... Inflation of bubbles indicates that the tightness is broken, which means that part of the gas does not reach the burner.

Important! Repair of the electrics of the gas boiler is allowed to be carried out independently, if available experience of similar work, v otherwise the result can lead to dire consequences.

Skills of use are required for repairs electrical tester, knowledge of technology soldering understanding the equipment diagram.

Failure of mechanical elements is eliminated either by their complete replacement, or by fixing the faults, if possible. In many cases, the owner can carry out the work on one's own.

Cleaning the pipelines is a simple procedure, so calling the wizard is not necessary, but it should be borne in mind that as a result of inaccurate actions, the structure can be damaged.

If a malfunction occurs as a result of reset board parameters responsible for controlling the functioning of the boiler, they should be restored. Permanent failures can indicate a malfunction of the electronic boards.

Diagnostics

Competent implementation of repairs involves adherence to a certain sequence of actions:

1. Revealing malfunctions... There are overt and implicit breakdowns. With a boiler that has ceased to function, everything is clear, but there may be defects that are difficult to notice immediately or that do not greatly affect the operation of the boiler room.
2. Diagnostics: search for the reasons that led to the breakdown. This can be clogged filters, violation of the integrity of the wires, failure of individual nodes.
3. Elimination of causes. First, you need to determine whether it will be possible to repair the boiler yourself, in some cases you can save a lot by performing simple manipulations, and sometimes there is a risk of aggravating the situation if you take wrong actions.

Reference! Do not disassemble and repair the boiler when the warranty period for its work has not yet expired. If the equipment cannot be repaired on its own, the repairmen will refuse to fix the defects free of charge.

Unstable burner operation, which often dies out. To maintain the combustion process, the presence of oxygen is necessary, its lack (during the operation of the boiler) is easy to detect if, for example, open windows in the boiler room. Combustion stabilization indicates the need improve ventilation in the working room.

You may have to put supply valves or a door with ventilation hole.

Insufficient gas flow in the line is determined by disconnecting the hose from the boiler. When the valve is open, you should hear hiss and feel odor of additivesgas mixture.

Pressure may drop due to clogging of the filter; to clean it, remove the inside grid and rinse. If a blockage occurs in the gas meter, you will have to call the gas service workers.

Overheating of the coolant can cause emergency shutdown of equipment... This often happens due to a malfunction of the pump that propels the working fluid around the house.

If air gets into working chamber pump, then to remove it you need to top up there coolant.

Sometimes rotor- pump element, - sticks and stops rotating, the malfunction can be eliminated by disassembling the case, the rotor is scrolled manually, if possible, removing debris in the chamber.

And you should also check expansion tank which have modern models of boilers is built into the unit itself. The pressure in it is checked with a standard automobile pressure gauge, its value should be 0.2 atm less than the working pressure in the pipeline.

If necessary, the air is pumped with a manual or electric pump.

You may also be interested in:

Repair materials and tools

To identify and fix breakdowns in a gas boiler, you will need:

DIY repair

The following malfunctions with the gas boiler are possible.

Combustion sensor breakage

The sensor cuts off the gas supply to the boiler combustion chamber when the flame goes out. Identifies a flame by its special properties, such as direction of current flow(the fire conducts it only in one direction, like a diode), or by the magnitude of the current.

Important! Some boiler models stop working if turn the plug in the socket.

The combustion sensor of a gas boiler may not work as a result clogging of the gas pipe. Elimination of the malfunction is reduced to its dismantling and thorough cleaning. If the boiler continues to turn off on its own, you will have to call the master.

Overheat

Equipment overheating reasons:

• absence fluid circulation;
• airing systems;
• rubbish in filters.

Clogged piping can be detected by hearing, during the operation of the boiler, there will be sounds: clicks or light knocking.

For washing, use special acid-based solutions.

Cleaning the heat exchanger of a gas boiler is carried out in the same way. Manufacturers recommend cleaning them every two to three years.

Reference! Heat exchangers made of copper alloys are more "delicate", therefore, when working with them, you cannot use hard metal brushes.

And you should also check the serviceability of all shut-off valves installed on the system. Replace if necessary.

To remove air from the system: open the taps and wait for the gas mixture to escape until a stream of water flows.

Blower fan malfunctions

Gas boiler fan malfunctions:

The weakest point of any fan is bearings... It is recommended to lubricate them periodically.

To do this, you need to remove the back of the cooler, pull out the stator and apply grease to the bearing surface.

Better to use heat-resistant types lubricants recommended by the equipment manufacturer. They can be purchased, for example, at auto parts stores.

• Short circuit between stator turns also leads to a malfunction. In some cases, it is possible to repair a part in the workshop, sometimes it is easier to replace it with a new one.

Chimney malfunctions

Signs of a malfunction of the boiler chimney:

• violation thrust- is detected when a match is brought to the boiler sight glass;
• advanced education soot.

There are a few possible options gas boiler draft violations:

There are reasons that greatly impair the draft, even if both the boiler and the chimney are not clogged. For example, next to the house appeared taller objects(these can be buildings or even trees) that interfere with the normal functioning of the boiler room. In this case, you will have to build up the pipe.

It can also affect cravings powerful hood, installed in an adjoining room, such as a kitchen.

Electrical and control board problems

First, you should inspect the external cables suitable for the gas boiler, is there damage, bends and breaks, their presence may indicate that the power supply is disrupted.

Lack of glow of indicators is also an indication that power is not being supplied to the equipment boards.

Attention! Some manufacturers refuse to implement warranty repair if the boiler was connected to electrical network without installing a voltage stabilizer or UPS.

Control board malfunctions cause glitches in the operation of boiler equipment or its complete shutdown. For repairs, you should invite the masters, since without knowing the circuit of the board, it is impossible to even diagnose it.

The cause of a gas boiler malfunction may be individual elements (microcircuits, diodes, capacitors, resistors) or breakage of a whole unit.

Moreover, the replacement of a specific component does not necessarily lead to the restoration of operability, since improper functioning of the power supply will cause damage to other boiler boards.

Therefore, replacing individual elements of a gas boiler with new ones, you can waste time in vain.

Cleaning the valve of a single and double-circuit gas boiler

Best for cleaning every two years, otherwise, it will be problematic to remove soot and scale deposits later on.

Having closed the gas supply valve in advance, you should start disassembling the boiler by removing the burner:

Gas boiler cleaning process:

1. After removing the upper boiler cover, disconnecting the draft sensor and removing the chimney pipe, you can access heat exchanger... It is covered with insulation and a casing, they should be removed.
2. Pull out from the heat exchanger tubulizers(swirlers), they are cleaned with a metal brush.
3. The heat exchanger itself is cleaned with homemade paddles and scrapers suitable size and shape.
4. Used as flushing solutions mixture citric acid and vinegar.
5. And also there are several types of factory tools, for example, "Anti-scale".
6. Usage homemade washing units allows you to clean the heat exchangers without disassembling or removing them. It is best to use reversible pumps for assembly, which allow you to change the direction of flow in one direction or the other.

Useful video

Check out the video that shows the process of cleaning a gas boiler.

Correct installation guarantees long-term performance

The process of installation and maintenance of gas equipment is regulated by:

• SNiP 2.04.08-87 (gas supply).
• SNiP II-35-76 (boiler plants).
• Government decree of 2008 No 549 (rules for the supply of gas to citizens of the Russian Federation).

Thus, the installation, replacement and maintenance of boilers should be carried out only with the participation and control relevant bodies, because gas appliances are hazardous equipment.

There is a fine for unauthorized installation and replacement of boilers. Utilities may even turn off the gas supply.

Installation of gas equipment, carried out in disregard of the basic rules, will lead to best case to his ineffective work , and at worst - to breakdown boiler.

The destruction of the case can occur if the piping of the device is incorrectly performed, the power of which above 50 kW(at low temperatures it may crack).

Installation voltage regulator will solve the problem of breakdowns of the electrical part of the boiler equipment. In this case, one should take into account the total power of the connected devices, starting currents, the value of which about 3 times workers (this is true for pumps that circulate a coolant around the house).

Prevention of boiler equipment will help ensure it smooth operation during the season. Recommend to carry it out twice a year